National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair

42°F

6°C

Humidity 77%
Wind Speed Calm
Barometer 30.54 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 2 Oct 9:15 am MDT
Extended Forecast for

3 Miles WSW East Portal CO

  • Today

    Today: Sunny, with a high near 50. West wind 5 to 7 mph becoming east southeast in the afternoon.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. Southeast wind 6 to 10 mph becoming west southwest after midnight. Winds could gust as high as 16 mph.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 51. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 51 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Southwest wind 6 to 14 mph, with gusts as high as 22 mph.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Rain and snow showers likely, becoming all snow after 3pm. Some thunder is also possible. Partly sunny, with a high near 43. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%.

    High: 43 °F

    Slight Chance
    Rain/Snow
    then
    Rain/Snow
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 26. Breezy.

    Low: 26 °F

    Breezy.
    Chance Snow
    Showers then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 37.

    High: 37 °F

    Sunny then
    Slight Chance
    Snow Showers

  • Sunday Night

    Sunday Night: A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Chance Snow
    Showers

  • Monday

    Monday: A slight chance of snow showers after noon. Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny
    then Slight
    Chance Snow
    Showers

Detailed Forecast

Today
Sunny, with a high near 50. West wind 5 to 7 mph becoming east southeast in the afternoon.
Tonight
Mostly clear, with a low around 37. Southeast wind 6 to 10 mph becoming west southwest after midnight. Winds could gust as high as 16 mph.
Friday
Mostly sunny, with a high near 51. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 36. Southwest wind 6 to 14 mph, with gusts as high as 22 mph.
Saturday
Rain and snow showers likely, becoming all snow after 3pm. Some thunder is also possible. Partly sunny, with a high near 43. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of snow showers before midnight. Partly cloudy, with a low around 26. Breezy.
Sunday
A 20 percent chance of snow showers after noon. Mostly sunny, with a high near 37.
Sunday Night
A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 26.
Monday
A slight chance of snow showers after noon. Partly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
A chance of snow showers. Some thunder is also possible. Mostly sunny, with a high near 41.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 29.
Wednesday
A chance of snow showers. Some thunder is also possible. Mostly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW East Portal CO
 39.89°N 105.7°W (Elev. 11722 ft)
Last Update:
8:20 am MDT Oct 2, 2025
Forecast Valid:
9am MDT Oct 2, 2025-6pm MDT Oct 8, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation